[fenix] For https://github.com/mozilla-mobile/fenix/issues/25212: Add tabs prioritization

app/src/main/java/org/mozilla/fenix/components/Core.kt

@@ -17,6 +17,7 @@ import mozilla.components.browser.engine.gecko.permission.GeckoSitePermissionsSt
 import mozilla.components.browser.icons.BrowserIcons
 import mozilla.components.browser.session.storage.SessionStorage
 import mozilla.components.browser.state.engine.EngineMiddleware
+import mozilla.components.browser.state.engine.middleware.SessionPrioritizationMiddleware
 import mozilla.components.browser.state.search.SearchEngine
 import mozilla.components.browser.state.state.BrowserState
 import mozilla.components.browser.state.state.SearchState
@@ -231,7 +232,8 @@ class Core(
                 AdsTelemetryMiddleware(adsTelemetry),
                 LastMediaAccessMiddleware(),
                 HistoryMetadataMiddleware(historyMetadataService),
-                SearchTermTabGroupMiddleware()
+                SearchTermTabGroupMiddleware(),
+                SessionPrioritizationMiddleware()
             )
 
         BrowserStore(